Dual scroll handles in Publish

In the new publish interface, I am getting 2 scroll handles, one for the main content area and one for the toc. Only the big (toc) one is grabbable. The small (main) one appears to be “under” it on the z axis. If I scroll down the main content, they overlap, ie the small one goes “inside” the big one.

Brave Version 1.48.171 Chromium: 110.0.5481.177 (Official Build) (64-bit)

Edition Windows 10 Pro
Version 22H2
Installed on ‎12/‎25/‎2022
OS build 19045.2604
Experience Windows Feature Experience Pack 120.2212.4190.0